The European mink is on the brink of extinction. This little-known species deserves attention. It is part of a whole segment of biodiversity that is disappearing out of the spotlight. This documentary explores the fieldwork of professionals dedicated to protecting the species, along with scientific, ethical, and philosophical reflections. How can we coexist with wildlife, respect their habitat, and approach conservation work? What resources should be committed to protect an endangered species? What environmental and moral imperatives lie behind these missions?